The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Feb. 24, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Li Chun Liu, Kaohsiung, TW;
Chun Tang Wang, Tainan, TW;
Chih Hung Wang, Taipei, TW;
Ching Feng Lee, Tainan, TW;
Yu-Lung Yeh, Kaohsiung, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A semiconductor device includes an ultra-thick metal (UTM) structure. The semiconductor device includes a passivation layer including a first passivation oxide. The first passivation oxide includes an unbias film and a first bias film, where the unbias film is on portions of the UTM structure and on portions of a layer on which the UTM structure is formed, and the first bias film is on the unbias film. The passivation layer includes a second passivation oxide consisting of a second bias film, the second bias film being on the first bias film. The passivation layer includes a third passivation oxide consisting of a third bias film, the third bias film being on the second bias film.